Shirakawa quit the company he had worked for for many years and changed jobs to the stocking maker Lady Tight.His boss who was introduced there was his former mistress, Eimi.Shirakawa continues to work while her weaknesses are grasped, and receives various humiliations from her every time she does something even though she is on duty.However, as he works under Eimi, he feels a strong sense of excitement and rewarding that he has never felt in his previous work.One day, Shirakawa learns that Eimi will be posted overseas due to her personnel change.